$NetBSD: patch-Makefile,v 1.2 2016/07/28 19:31:28 leot Exp $

- Accept user defined CC, CFLAGS and LDFLAGS.
- Add DESTDIR support
- Fix permissions of installed files

--- Makefile.orig	1996-09-30 03:34:20.000000000 +0000
+++ Makefile
@@ -2,13 +2,13 @@
 #
 # note that you need an ANSI C compiler;
 # gcc is easiest if you've got it or can get it
-CC=gcc
+CC?=gcc
 
 # flags for Linux/gcc, hack as required
 # remove '-DHAVE_RANDOM' if your libc doesn't have 'random' and 'srandom'.
 # add '-DNO_COLOUR' if you don't want colour or the colour support
 # causes problems.
-CFLAGS=-O2 -Wall -DHAVE_RANDOM -I/usr/include/ncurses #-DDEBUG
+CFLAGS+= -Wall -DHAVE_RANDOM
 
 # if using ncurses:
 LIBS=-lncurses
@@ -20,6 +20,7 @@ LIBS=-lncurses
 #LIBS=-lcurses -lterminfo
 
 # change these if needed - they're used by 'make install'
+DESTDIR?=
 BINDIR=/usr/games
 MANDIR=/usr/man/man6
 
@@ -31,11 +32,13 @@ OBJS=ztrack.o
 all: ztrack
 
 ztrack: $(OBJS)
-	$(CC) $(CFLAGS) -o ztrack $(OBJS) $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o ztrack $(OBJS) $(LIBS)
 
 install: ztrack
-	install -s -m 511 ztrack $(BINDIR)
-	install -m 444 ztrack.6 $(MANDIR)
+	install -d $(DESTDIR)$(BINDIR)
+	install -s -m 755 ztrack $(DESTDIR)$(BINDIR)
+	install -d $(DESTDIR)$(MANDIR)
+	install -m 644 ztrack.6 $(DESTDIR)$(MANDIR)
 
 clean:
 	$(RM) *.o *~ ztrack